Also, to contribute some advice, here is a guide how to achieve Yumiko's easter egg quest which occurs during the Hotshots' quarters game:
1) Once the wheel decides that you get to play the quarters game, save
2) For the first coin click, you need to aim for the green hand animation. ONLY if you hit it right, there will be a note saying that you have a good feeling. Once this note is displayed, save again.
3) The hard part: For the second and third click you need to hit it right AFTER the green animation steps. This can take may tries and the chances should be better if the animation process goes slower. So you can help that by having some CPU burner tool running in the background in order to slow down the animation steps. I presume there are 10 animation steps in total and you should hit the right one counting to six from the most upper hand animation.
Anyways, you will need lots of tries but the guides do not quite tell that you have to hit the second and third right after the green zone, so I hope this helps.